SN54LS145J [MOTOROLA]
1-OF-10 DECODER/DRIVER OPEN-COLLECTOR; 1 - OF- 10解码器/驱动器集电极开路
| 型号： | SN54LS145J |
| 厂家： | 
MOTOROLA |
| 描述： | 1-OF-10 DECODER/DRIVER OPEN-COLLECTOR |
| 文件： | 总5页 (文件大小：160K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54/74LS145
1-OF-10 DECODER/DRIVER
OPEN-COLLECTOR
The SN54/74LS145, 1-of-10 Decoder/Driver, is designed to accept BCD
inputs and provide appropriate outputs to drive 10-digit incandescent
displays. All outputs remain off for all invalid binary input conditions. It is
designed for use as indicator/relay drivers or as an open-collector logic circuit
driver. Each of the high breakdown output transistors will sink up to 80 mA of
current. Typical power dissipation is 35 mW. This device is fully compatible
with all TTL families.
1-OF-10 DECODER/DRIVER
OPEN-COLLECTOR
LOW POWER SCHOTTKY
• Low Power Version of 54/74145
• Input Clamp Diodes Limit High Speed Termination Effects
J SUFFIX
CERAMIC
CONNECTION DIAGRAM DIP (TOP VIEW)
CASE 620-09
16
1
N SUFFIX
PLASTIC
CASE 648-08
16
1
D SUFFIX
SOIC
CASE 751B-03
PIN NAMES
LOADING (Note a)
16
HIGH
LOW
1
P , P , P , P
BCD Inputs
Outputs (Note b)
0.5 U.L.
Open Collector
0.25 U.L.
15 (7.5) U.L.
0
1
2
3
Q
to Q
0
9
ORDERING INFORMATION
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 15 U.L. for Commercial (74)
Temperature Ranges.
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXD SOIC
LOGIC DIAGRAM
LOGIC SYMBOL
FAST AND LS TTL DATA
5-240
SN54/74LS145
TRUTH TABLE
INPUTS
OUTPUTS
P
3
P
2
P
1
P
0
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
9
0
1
2
3
4
5
6
7
8
L
L
L
L
L
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
H
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
L
H
H
L
H
H
H
L
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
L
H
H
L
H
H
H
H
H
H
H
H
L
H
H
L
L
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
T
A
Operating Ambient Temperature Range
54
74
–55
0
25
25
125
70
°C
V
Output Voltage — High
Output Current — Low
54, 74
15
V
OH
I
54
74
12
24
mA
OL
FAST AND LS TTL DATA
5-241
SN54/74LS145
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Input HIGH Voltage
Unit
Test Conditions
Min
Typ
Max
Guaranteed Input HIGH Voltage for
All Inputs
V
2.0
V
IH
54
74
0.7
0.8
–1.5
250
0.4
0.5
3.0
20
Guaranteed Input LOW Voltage for
All Inputs
V
V
Input LOW Voltage
V
IL
Input Clamp Diode Voltage
Output HIGH Current
–0.65
V
µA
V
V
V
= MIN, I = –18 mA
IN
IK
CC
I
54, 74
54, 74
74
= MIN, V = MAX
OH
OH
CC
0.25
0.35
2.3
I
I
I
= 12 mA
= 24 mA
= 80 mA
OL
OL
OL
V
V
= V
MIN,
CC
IN
CC
V
OL
Output LOW Voltage
= V or V
V
IL IH
per Truth Table
54, 74
V
µA
mA
mA
mA
V
CC
V
CC
V
CC
V
CC
= MAX, V = 2.7 V
IN
I
IH
Input HIGH Current
0.1
–0.4
13
= MAX, V = 7.0 V
IN
I
I
Input LOW Current
= MAX, V = 0.4 V
IN
IL
Power Supply Current
= MAX, V = GND
IN
CC
AC CHARACTERISTICS (T = 25°C)
A
Limits
Typ
Symbol
Parameter
Unit
Test Conditions
= 5.0 V
Min
Max
t
t
Propagation Delay
50
50
V
PHL
PLH
CC
C = 45 pF
L
ns
P
n
Input to Q Output
n
AC WAVEFORMS
Figure 1
Figure 2
FAST AND LS TTL DATA
5-242
Case 751B-03 D Suffix
16-Pin Plastic
SO-16
-A-
16
1
9
8
P
C
-B-
R X 45°
G
-T-
J
M
F
D
°
°
°
°
K
Case 648-08 N Suffix
16-Pin Plastic
-A-
16
1
9
B
S
8
F
L
C
K
-T-
M
H
J
G
D
°
°
°
°
Case 620-09 J Suffix
16-Pin Ceramic Dual In-Line
-A-
16
9
-B-
1
8
L
C
-T-
K
M
N
E
J
F
G
D
°
°
°
°
FAST AND LS TTL DATA
5-243
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